نتایج جستجو برای: haemonchus

تعداد نتایج: 1205  

2016
Farhana Yasmin Mahin Hossain Rafia Karim

Objective: To explore the efficacy of ethanolic leaf extract of Aristolochia indica L. in bacterial and worm infections using experimental models. Methods: Preliminary phytochemical screening was evaluated by following standard procedure. Antibacterial activity was carried out by disc diffusion method and anthelmintic effect of the plant extract was determined based on time taken for paralysis ...

2015
Behnam MESHGI Fatemeh JALOUSIAN Zahra MASIH

BACKGROUND Haemonchosis has a negative effect on the farming industry throughout the world, especially in the tropic and sub-tropic countries. The present study was carried out to differentiate Haemonchus species from its main hosts in Iran, including sheep, goat and camel. METHODS The identification took place based on the morphometrics of the spicules and molecular characters. Two hundred s...

Journal: :The Onderstepoort journal of veterinary research 2013
Davies M Pfukenyi Samson Mukaratirwa

In this review, the main gastrointestinal nematodes infecting cattle in Zimbabwe and the epidemiological factors influencing their occurrence are reviewed and discussed. Nineteen gastrointestinal nematode species that belong to seven families have been found to occur in cattle in Zimbabwe. The main genera reported to date are Cooperia, Haemonchus, Trichostrongylus and Oesophagostomum and the do...

2013
A. Razzaq K. Ashraf A. Maqbool M. A. Khan M. Islam H. Khan

In present research study, three experiments were launched during January 2011 to December 2011. Experiment I, Epidemiology: A total 1200 faecal samples (100 per month) were collected from farmers Bibrik-sheep (either sexes, 1-5 years old) and analyzed for nematodes prevalence. Experiment II, Sero-diagnosis: The sera samples of healthy and nematodes infected sheep were analyzed through ELISA. E...

Journal: :Antimicrobial agents and chemotherapy 1979
J R Egerton D A Ostlind L S Blair C H Eary D Suhayda S Cifelli R F Riek W C Campbell

When given to sheep as a single oral dose at 0.1 mg/kg, the B(1a) component of the avermectins caused a reduction of >95% in the numbers of Haemonchus contortus, Ostertagia circumcincta (including inhibited L(4) larvae), Trichostrongylus axei, Trichostrongylus colubriformis, Cooperia oncophora, and Oesophagostomum columbianum. When given to cattle as a single oral dose at 0.1 mg/kg, avermectin ...

Journal: :Journal of the American Veterinary Medical Association 2008
Sue B Howell Joan M Burke James E Miller Thomas H Terrill Elide Valencia Mimi J Williams Lisa H Williamson Anne M Zajac Ray M Kaplan

OBJECTIVE To determine prevalence of anthelmintic resistance on sheep and goat farms in the southeastern United States. DESIGN Cross-sectional study. ANIMALS Sheep and goats from 46 farms in 8 southern states, Puerto Rico, and St Croix in the US Virgin Islands. PROCEDURES Parasite eggs were isolated from fecal samples, and susceptibility to benzimidazole, imidathiazole, and avermectin-mil...

Journal: :The Onderstepoort journal of veterinary research 1980
J A Van Wyk H M Gerber

Exsheathed infective larvae (L3) of 16 species of nematodes were tested for infectivity in either sheep or cattle after they had been frozen and stored in 0,09% NaCl solution in the gas phase of liquid nitrogen for periods of up to 59 months. A mean of greater than 90% of the L3 of Haemonchus contortus, Ostertagia circumcincta, Trichostrongylus axei, Trichostrongylus colubriformis, Nematodirus ...

2017
F K Njonge

The gastrointestinal tract (GIT) of animals harbor a variety of parasites particularly helminths, which causes clinical and sub-clinical parasitism. These parasites adversely affect the health status of animals and cause enormous economic losses to the livestock industry. The aim of this study was to determine the prevalence of helminths in cattle of Kirinyaga County. Epidemiological data was c...

Journal: :Parasitology 2010
S Dominik P W Hunt J McNally A Murrell A Hall I W Purvis

This study aimed to identify putative quantitative trait loci (QTL) that significantly affect internal parasite resistance in a backcross sheep population. A Romney x Merino backcross (to Merino) flock was challenged in 3 separate infections with Trichostrongylus colubriformis (primary and secondary) and Haemonchus contortus (tertiary). Haematological parameters were measured and faecal worm eg...

2014
M. R. Akanda

A survey was conducted to determine the prevalence of gastrointestinal parasitism in crossbred and local cattle, Sylhet division, Bangladesh. Fecal samples were collected randomly from 288 local and 144 crossbred cattle of four representative areas in three following seasons. The effects of season and age were tested in both local and crossbred cattle. Frequency of trematodes and nematodes infe...

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